JPH0554740B2 - - Google Patents

Info

Publication number
JPH0554740B2
JPH0554740B2 JP28413385A JP28413385A JPH0554740B2 JP H0554740 B2 JPH0554740 B2 JP H0554740B2 JP 28413385 A JP28413385 A JP 28413385A JP 28413385 A JP28413385 A JP 28413385A JP H0554740 B2 JPH0554740 B2 JP H0554740B2
Authority
JP
Japan
Prior art keywords
cable
measurement
delay time
oscilloscope
period
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP28413385A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62142281A (ja
Inventor
Hideyuki Obara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP60284133A priority Critical patent/JPS62142281A/ja
Priority to US06/941,369 priority patent/US4814689A/en
Priority to DE8686309791T priority patent/DE3682045D1/de
Priority to ES86309791T priority patent/ES2025063B3/es
Priority to EP86309791A priority patent/EP0229505B1/en
Publication of JPS62142281A publication Critical patent/JPS62142281A/ja
Publication of JPH0554740B2 publication Critical patent/JPH0554740B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Testing Relating To Insulation (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP60284133A 1985-12-16 1985-12-16 ケ−ブル遅延時間測定方法 Granted JPS62142281A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP60284133A JPS62142281A (ja) 1985-12-16 1985-12-16 ケ−ブル遅延時間測定方法
US06/941,369 US4814689A (en) 1985-12-16 1986-12-15 Method of measuring a cable delay time
DE8686309791T DE3682045D1 (de) 1985-12-16 1986-12-16 Verfahren zur messung der zeitverzoegerung eines kabels.
ES86309791T ES2025063B3 (es) 1985-12-16 1986-12-16 Metodo para medir un cable de retardo
EP86309791A EP0229505B1 (en) 1985-12-16 1986-12-16 A method of measuring a cable delay time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60284133A JPS62142281A (ja) 1985-12-16 1985-12-16 ケ−ブル遅延時間測定方法

Publications (2)

Publication Number Publication Date
JPS62142281A JPS62142281A (ja) 1987-06-25
JPH0554740B2 true JPH0554740B2 (en]) 1993-08-13

Family

ID=17674592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60284133A Granted JPS62142281A (ja) 1985-12-16 1985-12-16 ケ−ブル遅延時間測定方法

Country Status (5)

Country Link
US (1) US4814689A (en])
EP (1) EP0229505B1 (en])
JP (1) JPS62142281A (en])
DE (1) DE3682045D1 (en])
ES (1) ES2025063B3 (en])

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734637A (en) * 1986-04-16 1988-03-29 Teradyne, Inc. Apparatus for measuring the length of an electrical line
DE3876420T2 (de) * 1988-04-05 1993-04-08 Heidenhain Gmbh Dr Johannes Zeitbereichsreflektometriemessverfahren sowie anordnung zu dessen durchfuehrung.
US5245291A (en) * 1989-12-06 1993-09-14 Hitachi Denshi Kabushiki Kaisha Method and apparatus for detecting cable length
US5159275A (en) * 1989-12-06 1992-10-27 Hitachi Denshi Kabushiki Kaisha Method and apparatus for detecting cable length
US5162743A (en) * 1990-11-09 1992-11-10 Cray Research, Inc. Method and apparatus for optimizing the electrical length of a signal flow path
DE69232208T2 (de) * 1991-02-26 2002-06-27 Nippon Telegraph And Telephone Corp., Tokio/Tokyo Verfahren und Vorrichtung zur Messung der Länge einer Übertragungsleitung
US5471145A (en) * 1994-04-07 1995-11-28 Texas Instruments Incorporated Calibrating transition dependent timing errors in automatic test equipment using a precise pulse width generator
JP3410269B2 (ja) * 1995-12-21 2003-05-26 株式会社アドバンテスト 遅延時間測定方法
US7239971B2 (en) * 2004-04-16 2007-07-03 Formfactor, Inc. Method and apparatus for calibrating communications channels
DE102008056232A1 (de) 2008-11-06 2010-05-20 Messer Austria Gmbh Verfahren und Vorrichtung zur Sauerstoffanreicherung von Gießwasser
US11693046B2 (en) * 2017-07-20 2023-07-04 Tektronix, Inc. Monitoring waveforms from waveform generator at device under test

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560518A (en]) * 1968-01-24 1969-03-21
US3911358A (en) * 1969-05-21 1975-10-07 German Mikhailovich Shalyt Method of and device for determining the distance to a fault in a wire or cable line
US3796948A (en) * 1972-07-25 1974-03-12 Westinghouse Electric Corp Standing wave detector
CH565468A5 (en]) * 1973-01-31 1975-08-15 Bbc Brown Boveri & Cie
DE2404223C3 (de) * 1974-01-30 1979-03-22 Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover Verfahren zur Messung der elektrischen Ladung von Teilentladungen und zur Ortung von Fehlerstellen in der Isolierung von isolierten Leitern
CA1044760A (en) * 1974-10-09 1978-12-19 Lim C. Hwa Methods and equipment for testing reflection points of transmission lines
SU635439A2 (ru) * 1977-03-18 1978-11-30 Kaminskij Anatolij Iosifovich Устройство дл определени рассто ни до места повреждени кабел
EP0074806A1 (en) * 1981-09-10 1983-03-23 Patented Devices (Proprietary) Limited Cable testing
US4598575A (en) * 1985-01-24 1986-07-08 Tektronix, Inc. Timer calibration method and apparatus
US4734637A (en) * 1986-04-16 1988-03-29 Teradyne, Inc. Apparatus for measuring the length of an electrical line

Also Published As

Publication number Publication date
DE3682045D1 (de) 1991-11-21
JPS62142281A (ja) 1987-06-25
EP0229505A1 (en) 1987-07-22
US4814689A (en) 1989-03-21
EP0229505B1 (en) 1991-10-16
ES2025063B3 (es) 1992-03-16

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